ignition electrode cap

Abstract

An ignition electrode cap includes a casing, a connecting pin and a connecting sleeve, and also includes a resistor. One end of the connecting pin and the connecting sleeve are electrically connected to two ends of the resistor respectively; the outer surface of the high-voltage ignition wire hole is provided with a locking thread and a lock The locking nut is provided with an opening for the high-voltage ignition wire to pass through, a clamping piece is arranged in the high-voltage ignition wire hole at the front end of the locking thread, and a tapered surface is arranged on the inner side of the front end of the locking nut. Tightly screw connection and squeeze the clamping piece through the conical surface to shrink along the inner side of the high-voltage ignition wire hole direction; one end of the connecting sleeve is provided with an electrode hole, the ignition electrode is correspondingly inserted in the electrode hole, and the surface of the electrode hole is provided with a spring groove and a circlip incision connected to the electrode hole, a circlip is sleeved on the surface of the circlip groove, and one end of the circlip is clamped on the surface of the ignition electrode through the circlip. The invention has quick connection and reliable contact, can effectively reduce external high-frequency interference, and reduce the influence of the interference signal on the flame detection of the combustion controller.

Description

technical field [0001] The invention relates to the field of ignition electrode caps, in particular to a combustion appliance with quick connection, reliable contact, reduced external high-frequency interference, and reduced influence of interference signals on flame detection of a combustion controller, and is applied to an industrial kiln system The ignition electrode cap between the ignition electrode and the high-voltage ignition wire at the output end of the ignition transformer under the control of the combustion controller. Background technique [0002] figure 1 It is the center sectional view of the existing ignition electrode cap. It is mainly composed of connecting needle 4', connecting sleeve 6', retaining spring 7', electrode cap shell 8', and connecting spring 11'. The high-voltage ignition wire of the ignition transformer is inserted into the high-voltage ignition wire matching hole 8A' of the electrode cap shell 8', and screwed into the needle portion 4A' of...

AI Technical Summary

Problems solved by technology

[0004] Due to unavoidable vibration and touch during use, the connection pin 4' has a taper, and the connection between the high-voltage ignition wire and the connection pin 4' will be loose; when the electrode cap shell 8' is injected, the connection pin 4' and the connection spring 11 There will be plastic residue in the contact part of ', which will affect the passage of ignition current; the connection sleeve 6' is connected to the electrode cap shell 8' through the thread 6E' of the connection sleeve, and it will also loosen due to inevitable vibration and touch; there is no current limiting resistor , the high-voltage ignition current is likely to generate high-frequency interference to the outside world, and generate high-current impact on the control circuit

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